Relative spins and excitation energies of superdeformed bands in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">Hg</mml:mi></mml:mrow><mml:mprescripts/><mml:mrow/><mml:mrow><mml:mn>190</mml:mn></mml:mrow><mml:mrow/><mml:mrow/></mml:mmultiscripts></mml:mrow></mml:math>: Further evidence for octupole vibration
B. CrowellArgonne National Laboratory, Argonne, Illinois 60439M. P. CarpenterArgonne National Laboratory, Argonne, Illinois 60439R. V. F. JanssensArgonne National Laboratory, Argonne, Illinois 60439D. J. BlumenthalArgonne National Laboratory, Argonne, Illinois 60439J. TímárUniversity of Liverpool, Liverpool L69 3BX, United KingdomA. N. WilsonUniversity of Liverpool, Liverpool L69 3BX, United KingdomJ. F. Sharpey‐SchaferArgonne National Laboratory, Argonne, Illinois 60439Takashi NakatsukasaAECL Research, Chalk River Laboratories, Chalk River, Ontario, Canada K0J 1J0I. AhmadArgonne National Laboratory, Argonne, Illinois 60439A. AstierArgonne National Laboratory, Argonne, Illinois 60439F. AzaiezInstitut National de Physique Nucléaire et de Physique des ParticulesL. du CrouxInstitut National de Physique Nucléaire et de Physique des ParticulesB. J. P. GallArgonne National Laboratory, Argonne, Illinois 60439F. HannachiCentre de Spectrométrie Nucléaire et de Spectrométrie de Masse, Institut National de Physique Nucléaire et de Physique des Particules, Centre National de la Recherche Scientifique, bâtiment 104, F-91406 Orsay Cedex, FranceT. L. KhooArgonne National Laboratory, Argonne, Illinois 60439A. KorichiInstitut National de Physique Nucléaire et de Physique des ParticulesT. LauritsenArgonne National Laboratory, Argonne, Illinois 60439А. Лопез-МартенсInstitut National de Physique Nucléaire et de Physique des ParticulesM. MeyerInstitut National de Physique Nucléaire et de Physique des ParticulesD. NisiusArgonne National Laboratory, Argonne, Illinois 60439E. S. PaulArgonne National Laboratory, Argonne, Illinois 60439M.-G. PorquetArgonne National Laboratory, Argonne, Illinois 60439N. RedonInstitut National de Physique Nucléaire et de Physique des Particules
1995lv
ABI
Annotatsiya
An experiment using the Eurogam phase II \ensuremath{\gamma}-ray spectrometer confirms the existence of an excited superdeformed (SD) band in $^{190}\mathrm{Hg}$ and its very unusual decay into the lowest SD band over 3--4 transitions. The energies of the transitions linking the two SD bands have been firmly established, and their angular distributions are consistent with a dipole character. Comparisons with calculations using random-phase approximation indicate that the excited SD band can be interpreted as an octupole-vibrational structure.
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